

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    
    <title>羊了个羊</title>
    <style>
        * {
            box-sizing: border-box;
        }
        body {
            margin: 0;
        }
        .main {
            position: relative;
        }
        .item {
            position: absolute;
            background: no-repeat center center #ffffff;
            border:1px solid #ddd;
            background-size: 100%;
            color: transparent;
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 0;
            transition: left .3s, top .3s, transform .3s;
        }
        .item:after {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 0;
            right: 0;
            transition: background-color .2s;
        }
        .disabled:after {
            
            background-color: rgba(0,0,0,0.7);
        }
        .move-list {
            border: 1px solid #ddd;
            background-color: #ddd;
            margin:0 auto;
        }
    </style>
</head>
<body>
    <div class="main">

    </div>
    <div class="move-list">

    </div>
</body>
<script>
    // 基础数据
    const simpleData = [
        {name: '虎', color: '#ff1100', bg: './images/llk/1.png'},
        {name: '兔', color: '#ff8800', bg: './images/llk/2.png'},
        {name: '牛', color: 'green', bg: './images/llk/3.png'},
        {name: '羊', color: 'blue', bg: './images/llk/4.png'},
        {name: '蛇', color: '#779922', bg: './images/llk/5.png'},
        {name: '鼠', color: '#335577', bg: './images/llk/6.png'}
    ]
    // 卡片大小
    const size = 40
    // 矩阵行
    const rows = 10
    // 矩阵列
    const cols = 10
    // 每组为3个
    const oneGoupCount = 3
    // 每个卡片有x组
    const group = 6
    // 总共6层，即6个表格
    const layerCount = 6
    // 表格html
    const cellHtml = []
    // 将生成所有的十二生肖
    const renderData = Array.from(new Array(oneGoupCount * group)).map(v => {
        return simpleData.map(v => ({...v}))
    }).flat().sort(v => Math.random() - 0.5)
    // 第一步：绘制出表格矩阵
    for(let ly = layerCount - 1; ly >= 0 ; ly--) {
        for(let i = 0; i < rows; i++) {
            for(let j = 0; j < cols; j++) {
                let pyStep = (ly + 1) % 2 === 0 ? size / 2 : 0
                let item = (Math.random() > 0.7 && renderData.pop())

                item && cellHtml.push(`<div class="item" onclick="move(this)" id="m${ly}-${i}-${j}"
                    style="width:${size}px;height:${size}px;left:${size * j + pyStep}px;top:${size * i + pyStep}px;background-image:url(${item.bg || ''})">${item.name || ''}</div>`)
            }
        }
    }
    const main = document.querySelector('.main')
    const moveList = document.querySelector('.move-list')
    main.innerHTML = cellHtml.reverse().join('')
    main.style.height = `${size * rows + size * 2}px`
    main.style.width = `${size * cols}px`
    moveList.style.height = `${size}px`
    moveList.style.width = `${size * 6}px`
    // 第二步：计算被遮住的底牌需标暗色
    const checkDisabled = (items) => {
        (items || main.querySelectorAll('.item')).forEach((v, i) => {
            const arr = v.id.substring(1).split('-').map(v => Number(v))
            const isPy = (arr[0] + 1) % 2 === 0
            for(let i=arr[0]+1;i<=layerCount - 1;i++) {
                const isPyB = (i + 1) % 2 === 0
                if (isPy === isPyB) {
                    const el = main.querySelector(`#m${i}-${arr[1]}-${arr[2]}`)
                    if (el) {
                        v.classList.add('disabled')
                        break;
                    }
                } else if (isPy && !isPyB) {
                    if(![
                        `${i}-${arr[1]}-${arr[2]}`,
                        `${i}-${arr[1]}-${arr[2]+1}`,
                        `${i}-${arr[1]+1}-${arr[2]}`,
                        `${i}-${arr[1]+1}-${arr[2]+1}`
                    ].every(k => {
                        return !main.querySelector('#m'+k)
                    })) {
                        v.classList.add('disabled')
                        break;
                    } else {
                        v.classList.remove('disabled')
                    }
                    
                } else if (!isPy && isPyB) {
                    if(![
                        `${i}-${arr[1]}-${arr[2]}`,
                        `${i}-${arr[1]}-${arr[2]-1}`,
                        `${i}-${arr[1]-1}-${arr[2]}`,
                        `${i}-${arr[1]-1}-${arr[2]-1}`
                    ].every(k => {
                        return !main.querySelector('#m'+k)
                    })) {
                        v.classList.add('disabled')
                        break;
                    } else {
                        v.classList.remove('disabled')
                    }
                    
                }
            }
        })
    }
    // 第三步：点击卡片进行消除计算
    let canMove = true
    // 点击棋子，动画移动
    const move = (me) => {
        let left = moveList.offsetLeft
        let top = moveList.offsetTop
        if (!canMove || me.className.indexOf('disabled') >= 0) {
            return
        }
        canMove = false
        if (moveList.children.length > 0) {
            let el = moveList.children[moveList.children.length - 1]
            left = el.offsetLeft + size
            top = el.offsetTop
        }
        me.style.top = `${top}px`
        me.style.left = `${left}px`
        me.transitionNamesCount = 0
        me.ontransitionend = (e) => {
            me.transitionNamesCount++
            if (me.transitionNamesCount === 2) {
                moveEnd(me)
                canMove = true
            }
            
        }
    }
    // 动画结束的相关计算
    const moveEnd = (me) => {
        me.ontransitionend = null
        me.setAttribute('onclick', '')
        moveList.appendChild(me)
        
        const findResult = [...moveList.children].filter(v => v.innerHTML === me.innerHTML)
        if (findResult.length === 3) {
            findResult.forEach(v => {
                v.ontransitionend = (e) => {
                    
                    moveList.removeChild(v)
                    ;[...moveList.children].forEach((v, i) => {
                        v.style.left = `${i*size + moveList.offsetLeft}px`
                    })
                }
                setTimeout(() => v.style.transform = 'scale(0)')
            })
            
        }
        setTimeout(() => {
            if (moveList.children.length === 6) {
                alert('池子已满，游戏结束')
                return location.reload()
            } else if (main.children.length === 0) {
                alert('恭喜通关')
                return location.reload()
            }
        }, 1000)
        checkDisabled()
    }
    checkDisabled()
</script>

</html>